Thermal Flow Meter

Thermal Flow Meter

The Thermal Gas Mass Flowmeter is designed on the basis of Thermal Dispersion. It utilizes the cooling effect of a gas stream as it passes over a heated sensor to measure mass flow or volume flow directly.

Designed with high reliability, easy installation, and high accuracy, this meter does not require temperature and pressure compensation in principle to achieve accurate gas flow measurement. Featuring no moving parts and high vibration resistance, it provides stable measurement across demanding industrial environments.

AVAILABLE BRANDS:
XUDA (China)
SMC (USA)

Description

Short Description & Specifications

Pipe SizeDN10 to DN4000mm
Measuring MediumVarious gases
Accuracy±1 ~ 2.5%
Velocity Range0.1 to 100 Nm/s
Working TemperatureSensor: -40°C ~ +100°C | Transmitter: -20°C ~ +45°C
Working Pressure≤1.6 MPa (Special pressure options available)
Body & Sensor MaterialStainless Steel (Other materials on request)
Power SupplyStd. 24V DC, Opt. 220V AC, or Lithium Battery
Output & CommunicationPulse, 4-20mA, Modbus RS485, HART Protocol
Explosion-Proof GradeStd. Non-Explosion-proof, Opt. Explosion-proof, Flameproof

Features & Key Advantages

Direct Mass Flow Measurement

Measures mass flow or volume flow of gas directly without requiring temperature and pressure compensation.

Wide Velocity & Pipe Range

Wide measurement range (0.1 to 100 Nm/s) suitable for pipe sizes ranging from DN10 up to DN4000mm.

Durable & Reliable Design

Features good vibration resistance, long service life, no moving parts, and zero pressure sensor influence.

Flexible Installation Options

Supports standard insertion and flanged mounting, and compact or remote constructions.

LCD Display

Clear digital display showing mass flow, standard volume flow, totalizer, date/time, working time, and velocity.

Easy System Integration

Outputs pulse, 4-20mA, RS485, and HART signals can use for PLC/SCADA/Eqv control system.

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